 Robert's brothers Giles and James became successively 4th Baronet and 5th Baronet.The baronetcy became extinct in 1805 on the death of the 10-year-old 8th Baronet, son of Sir James Tylney-Long, 7th Baronet.Sir James's son lived at Athelhampton House in Dorset (also known as Admiston or Adminston), which had been inherited from Sir Robert Long in 1673.